From 6fdf860f15d4a6be8f0947bad608d687fe0c7af7 Mon Sep 17 00:00:00 2001 From: Tejun Heo Date: Tue, 29 Sep 2015 12:47:51 -0400 Subject: writeback: fix bdi_writeback iteration in wakeup_dirtytime_writeback() wakeup_dirtytime_writeback() walks and wakes up all wb's of all bdi's; unfortunately, it was always waking up bdi->wb instead of the wb being walked. Fix it. Signed-off-by: Tejun Heo Fixes: 001fe6f617b1 ("writeback: make wakeup_dirtytime_writeback() handle multiple bdi_writeback's") Reviewed-by: Jan Kara Signed-off-by: Jens Axboe --- fs/fs-writeback.c | 4 ++-- 1 file changed, 2 insertions(+), 2 deletions(-) (limited to 'fs/fs-writeback.c') diff --git a/fs/fs-writeback.c b/fs/fs-writeback.c index 091a36444972..d0da30668e98 100644 --- a/fs/fs-writeback.c +++ b/fs/fs-writeback.c @@ -1897,8 +1897,8 @@ static void wakeup_dirtytime_writeback(struct work_struct *w) struct wb_iter iter; bdi_for_each_wb(wb, bdi, &iter, 0) - if (!list_empty(&bdi->wb.b_dirty_time)) - wb_wakeup(&bdi->wb); + if (!list_empty(&wb->b_dirty_time)) + wb_wakeup(wb); } rcu_read_unlock(); schedule_delayed_work(&dirtytime_work, dirtytime_expire_interval * HZ); -- cgit v1.2.3